Performance Introduction: 1. Each machine unit contains 8 independent 4-electrode testing channels; each of them is equipped with programmable constant-current supply, constant-voltage supply and load pulse source. 2. Technical standards: Current output: 0.2A-10A Voltage output: 2V-20V Precision of current: 0.1%RD+0.1%FD Precision of voltage: 0.1%RD+0.1%FD 3. Energy-saving PWM power assembly is used for a large decrease in the production testing cost and the prevention of considerable emission of heat to working environment.